Observation of anisotropic diamagnetism above the superconducting transition in iron pnictide Ba${}_{1\ensuremath{-}x}$K${}_{x}$Fe${}_{2}$As${}_{2}$ single crystals due to thermodynamic fluctuations

Observation of anisotropic diamagnetism above the superconducting transition in iron pnictide Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ single crystals due to thermodynamic fluctuations

J. Mosqueira, J. D. Dancausa, F. Vidal, S. Salem-Sugui, Jr., A. D. Alvarenga, H.-Q. Luo, Z.-S. Wang, and H.-H. Wen

Phys. Rev. B 83, 094519 – Published 15 March 2011; Erratum Phys. Rev. B 83, 219906 (2011)

Abstract

High-resolution magnetization measurements performed in a high-quality Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ single crystal allowed to determine the diamagnetism induced above the superconducting transition by thermally activated Cooper pairs. These data, obtained with magnetic fields applied along and transverse to the crystal $ab$ layers, demonstrate experimentally that the superconducting transition of iron pnictides may be explained at a phenomenological level in terms of the Gaussian Ginzburg-Landau approach for three-dimensional anisotropic superconductors.

Received 21 December 2010

DOI:https://doi.org/10.1103/PhysRevB.83.094519

Erratum

Erratum: Observation of anisotropic diamagnetism above the superconducting transition in iron pnictide Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ single crystals due to thermodynamic fluctuations [Phys. Rev. B 83, 094519 (2011)]

J. Mosqueira, J. D. Dancausa, F. Vidal, S. Salem-Sugui, Jr., A. D. Alvarenga, H.-Q. Luo, Z.-S. Wang, and H.-H. Wen

Phys. Rev. B 83, 219906 (2011)

Authors & Affiliations

J. Mosqueira^*, J. D. Dancausa, and F. Vidal

Laboratorio de Baixas Temperaturas e Superconductividade (LBTS), Facultade de Física, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain

S. Salem-Sugui, Jr.

Instituto de Fisica, Universidade Federal do Rio de Janeiro, 21941-972 Rio de Janeiro, RJ, Brazil

A. D. Alvarenga

Instituto Nacional de Metrologia Normalização e Qualidade Industrial, 25250-020 Duque de Caxias, RJ, Brazil

H.-Q. Luo, Z.-S. Wang, and H.-H. Wen

National Laboratory for Superconductivity, Institute of Physics and National Laboratory for Condensed Matter Physics, P.O. Box 603, Beijing 100190, People’s Republic of China

^*j.mosqueira@usc.es

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Vol. 83, Iss. 9 — 1 March 2011

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Physical Review B

covering condensed matter and materials physics

Observation of anisotropic diamagnetism above the superconducting transition in iron pnictide Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ single crystals due to thermodynamic fluctuations

J. Mosqueira, J. D. Dancausa, F. Vidal, S. Salem-Sugui, Jr., A. D. Alvarenga, H.-Q. Luo, Z.-S. Wang, and H.-H. Wen

Phys. Rev. B 83, 094519 – Published 15 March 2011; Erratum Phys. Rev. B 83, 219906 (2011)

Abstract

Erratum

Erratum: Observation of anisotropic diamagnetism above the superconducting transition in iron pnictide Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ single crystals due to thermodynamic fluctuations [Phys. Rev. B 83, 094519 (2011)]

J. Mosqueira, J. D. Dancausa, F. Vidal, S. Salem-Sugui, Jr., A. D. Alvarenga, H.-Q. Luo, Z.-S. Wang, and H.-H. Wen

Phys. Rev. B 83, 219906 (2011)

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Physical Review B

covering condensed matter and materials physics

Observation of anisotropic diamagnetism above the superconducting transition in iron pnictide Ba1−xKxFe2As2 single crystals due to thermodynamic fluctuations

J. Mosqueira, J. D. Dancausa, F. Vidal, S. Salem-Sugui, Jr., A. D. Alvarenga, H.-Q. Luo, Z.-S. Wang, and H.-H. Wen

Phys. Rev. B 83, 094519 – Published 15 March 2011; Erratum Phys. Rev. B 83, 219906 (2011)

Abstract

Erratum

Erratum: Observation of anisotropic diamagnetism above the superconducting transition in iron pnictide Ba1−xKxFe2As2 single crystals due to thermodynamic fluctuations [Phys. Rev. B 83, 094519 (2011)]

J. Mosqueira, J. D. Dancausa, F. Vidal, S. Salem-Sugui, Jr., A. D. Alvarenga, H.-Q. Luo, Z.-S. Wang, and H.-H. Wen

Phys. Rev. B 83, 219906 (2011)

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Observation of anisotropic diamagnetism above the superconducting transition in iron pnictide Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ single crystals due to thermodynamic fluctuations

Erratum: Observation of anisotropic diamagnetism above the superconducting transition in iron pnictide Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ single crystals due to thermodynamic fluctuations [Phys. Rev. B 83, 094519 (2011)]